X=30+2x

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Solution for X=30+2x equation: 



X=30+2X

We move all terms to the left:

X-(30+2X)=0

We add all the numbers together, and all the variables

X-(2X+30)=0

We get rid of parentheses

X-2X-30=0

We add all the numbers together, and all the variables

-1X-30=0

We move all terms containing X to the left, all other terms to the right

-X=30

X=30/-1

X=-30

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